./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3915928774 <...> Warning: Permanently added '10.128.10.1' (ECDSA) to the list of known hosts. execve("./syz-executor3915928774", ["./syz-executor3915928774"], 0x7ffdcaa00040 /* 10 vars */) = 0 brk(NULL) = 0x555556ed2000 brk(0x555556ed2c40) = 0x555556ed2c40 arch_prctl(ARCH_SET_FS, 0x555556ed2300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3915928774", 4096) = 28 brk(0x555556ef3c40) = 0x555556ef3c40 brk(0x555556ef4000) = 0x555556ef4000 mprotect(0x7f406cfab000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4064af1000 write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 munmap(0x7f4064af1000, 4194304) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 62.437299][ T4995] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4995 'syz-executor391' ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file0", 0777) = 0 [ 62.487259][ T4995] loop0: detected capacity change from 0 to 8192 [ 62.498865][ T4995] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 62.512048][ T4995] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 62.521793][ T4995] REISERFS (device loop0): using ordered data mode [ 62.528476][ T4995] reiserfs: using flush barriers [ 62.534626][ T4995] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 62.551150][ T4995] REISERFS (device loop0): checking transaction log (loop0) [ 62.560776][ T4995] REISERFS (device loop0): Using r5 hash to sort names [ 62.568577][ T4995] REISERFS panic (device loop0): vs-13065 update_stat_data: key [1 2 0x0 DIRECT], found item *3.6* [1 2 0x0 DIRECT], item_len 44, item_location 4052, free_space(entry_count) 0 [ 62.586428][ T4995] ------------[ cut here ]------------ [ 62.591894][ T4995] kernel BUG at fs/reiserfs/prints.c:390! [ 62.597668][ T4995] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 62.603741][ T4995] CPU: 0 PID: 4995 Comm: syz-executor391 Not tainted 6.4.0-rc4-syzkaller-00265-g4ecd704a4c51 #0 [ 62.614135][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 62.624182][ T4995] RIP: 0010:__reiserfs_panic+0x13e/0x140 [ 62.629834][ T4995] Code: c7 c1 e0 b7 fb 8a 48 0f 44 c8 48 0f 44 d8 48 c7 c7 a0 b8 fb 8a 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 60 9a ca 91 e8 c2 76 7f 08 <0f> 0b f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 [ 62.649452][ T4995] RSP: 0018:ffffc90003b6f540 EFLAGS: 00010246 [ 62.655515][ T4995] RAX: 00000000000000ad RBX: ffffffff8afb6fe0 RCX: 39aea3acd094e500 [ 62.663473][ T4995] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 62.671428][ T4995] RBP: ffffc90003b6f630 R08: ffffffff816f004c R09: fffff5200076de21 [ 62.679388][ T4995] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8afb7000 [ 62.687438][ T4995] R13: ffffc90003b6f560 R14: ffffffff8c8510ec R15: ffff88807c2386a8 [ 62.695487][ T4995] FS: 0000555556ed2300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 62.704407][ T4995] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.710976][ T4995] CR2: 00007f6021df1b10 CR3: 0000000078bf1000 CR4: 00000000003506f0 [ 62.718934][ T4995] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.726896][ T4995] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.734856][ T4995] Call Trace: [ 62.738129][ T4995] [ 62.741049][ T4995] ? __die_body+0x5e/0xa0 [ 62.745373][ T4995] ? die+0x87/0xb0 [ 62.749086][ T4995] ? do_trap+0x11e/0x350 [ 62.753321][ T4995] ? __reiserfs_panic+0x13e/0x140 [ 62.758367][ T4995] ? __reiserfs_panic+0x13e/0x140 [ 62.763383][ T4995] ? do_error_trap+0x141/0x1f0 [ 62.768135][ T4995] ? __reiserfs_panic+0x13e/0x140 [ 62.773159][ T4995] ? do_int3+0x30/0x30 [ 62.777226][ T4995] ? handle_invalid_op+0x2c/0x40 [ 62.782180][ T4995] ? __reiserfs_panic+0x13e/0x140 [ 62.787242][ T4995] ? exc_invalid_op+0x33/0x50 [ 62.791914][ T4995] ? asm_exc_invalid_op+0x1a/0x20 [ 62.796938][ T4995] ? __wake_up_klogd+0xcc/0x100 [ 62.801788][ T4995] ? __reiserfs_panic+0x13e/0x140 [ 62.806808][ T4995] ? reiserfs_debug+0x10/0x10 [ 62.811489][ T4995] reiserfs_update_sd_size+0xfd5/0x10b0 [ 62.817033][ T4995] ? restart_transaction+0x1e0/0x1e0 [ 62.822323][ T4995] ? journal_begin+0x1f3/0x360 [ 62.827076][ T4995] reiserfs_mkdir+0x75c/0x8f0 [ 62.831746][ T4995] ? reiserfs_symlink+0x720/0x720 [ 62.836769][ T4995] ? __down_write_common+0x161/0x200 [ 62.842064][ T4995] ? __up_read+0x690/0x690 [ 62.846474][ T4995] reiserfs_xattr_init+0x323/0x670 [ 62.851580][ T4995] reiserfs_fill_super+0x2207/0x2620 [ 62.856865][ T4995] ? reiserfs_kill_sb+0x150/0x150 [ 62.861891][ T4995] ? snprintf+0xda/0x120 [ 62.866131][ T4995] ? sb_set_blocksize+0x99/0x100 [ 62.871058][ T4995] mount_bdev+0x2d0/0x3f0 [ 62.875383][ T4995] ? reiserfs_kill_sb+0x150/0x150 [ 62.880416][ T4995] legacy_get_tree+0xef/0x190 [ 62.885103][ T4995] ? remove_save_link+0x540/0x540 [ 62.890125][ T4995] vfs_get_tree+0x8c/0x270 [ 62.894537][ T4995] do_new_mount+0x28f/0xae0 [ 62.899050][ T4995] ? path_mount+0x5f2/0xf80 [ 62.903547][ T4995] ? do_move_mount_old+0x170/0x170 [ 62.908652][ T4995] ? user_path_at_empty+0x12f/0x180 [ 62.913842][ T4995] __se_sys_mount+0x2d9/0x3c0 [ 62.918513][ T4995] ? __x64_sys_mount+0xc0/0xc0 [ 62.923267][ T4995] ? syscall_enter_from_user_mode+0x32/0x230 [ 62.929235][ T4995] ? __x64_sys_mount+0x20/0xc0 [ 62.934081][ T4995] do_syscall_64+0x41/0xc0 [ 62.938497][ T4995] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 62.944382][ T4995] RIP: 0033:0x7f406cf3eb0a [ 62.948793][ T4995] Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 62.968397][ T4995] RSP: 002b:00007ffcb89819e8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 62.976801][ T4995] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f406cf3eb0a [ 62.984764][ T4995] RDX: 0000000020000000 RSI: 0000000020000040 RDI: 00007ffcb8981a00 [ 62.992739][ T4995] RBP: 00007ffcb8981a00 R08: 00007ffcb8981a40 R09: 0000000000001105 [ 63.000699][ T4995] R10: 0000000000208000 R11: 0000000000000286 R12: 0000000000000004 [ 63.008657][ T4995] R13: 0000555556ed22c0 R14: 0000000000208000 R15: 00007ffcb8981a40 [ 63.016628][ T4995] [ 63.019635][ T4995] Modules linked in: [ 63.023997][ T4995] ---[ end trace 0000000000000000 ]--- [ 63.029482][ T4995] RIP: 0010:__reiserfs_panic+0x13e/0x140 [ 63.035166][ T4995] Code: c7 c1 e0 b7 fb 8a 48 0f 44 c8 48 0f 44 d8 48 c7 c7 a0 b8 fb 8a 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 60 9a ca 91 e8 c2 76 7f 08 <0f> 0b f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 [ 63.054825][ T4995] RSP: 0018:ffffc90003b6f540 EFLAGS: 00010246 [ 63.060889][ T4995] RAX: 00000000000000ad RBX: ffffffff8afb6fe0 RCX: 39aea3acd094e500 [ 63.068970][ T4995] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 63.076967][ T4995] RBP: ffffc90003b6f630 R08: ffffffff816f004c R09: fffff5200076de21 [ 63.085003][ T4995] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8afb7000 [ 63.093006][ T4995] R13: ffffc90003b6f560 R14: ffffffff8c8510ec R15: ffff88807c2386a8 [ 63.101056][ T4995] FS: 0000555556ed2300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 63.110013][ T4995] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.116621][ T4995] CR2: 00007f6021df1b10 CR3: 0000000078bf1000 CR4: 00000000003506f0 [ 63.124618][ T4995] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.132734][ T4995] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.140700][ T4995] Kernel panic - not syncing: Fatal exception [ 63.147061][ T4995] Kernel Offset: disabled [ 63.151383][ T4995] Rebooting in 86400 seconds..